1 I/O bus (10 pins, female) to electrically connect the first terminal unit
2 Plug (1x 50 pins and 2x 38 pins) to electrically connect the inserted communication interface
module
3 With a screwdriver, inserted in this place, the terminal unit and the adjacent I/O terminal unit
can be shoved from each other
4 2 holes for wall mounting
5 10 terminals for connection with the bus system
6 30 terminals for signals and process supply voltages (UP and UP3)
7 DIN rail
The communication interface modules plug into the terminal unit. When properly plugged-in,
they are secured with two mechanical locks. All the electrical connections are established via
the terminal unit, which allows removal and replacement of the communication interface mod-
ules without disturbing the wiring at the terminal unit.
The terminal units TU517 and TU518 are specifically designed for use with AC500/S500 com-
munication interface modules (e. g. CI581-CN, CI541-DP):
● CANopen communication interface modules
● DeviceNet modules
● PROFIBUS DP communication interface modules
Terminal Units (AC500 Standard) > TU517 and TU518 for Communication Interface Modules
2019/04/17 3ADR010121, 13, en_US 159
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